Standing on the elevated grounds of Jinjipo overlooking the Yangtze River, the Jiujiang Mobil Oil Depot Office Building captures a defining moment in China’s early twentieth-century industrial history. Constructed in 1910 during the final years of the Qing Dynasty, the building emerged as American and European corporations raced to dominate the regional kerosene market. The American Mobil Oil Company chose this strategic riverfront location to anchor its vast distribution network, commissioning local architectural master Zhang Mouzhi to design the facility. Zhang successfully merged Western classical revival styles with local building techniques, creating a structure that served both administrative and industrial needs.

The building is a striking two-story brick-and-concrete structure, resting on a semi-basement and capped with a four-sloped roof. Clear-water red bricks form a continuous four-sided external veranda. On the ground floor, sturdy square pillars support a rhythmic arched colonnade, while the second floor features an open, wraparound balcony. A close look at the eastern archway reveals the year "1910" carved into the masonry, marking the completion of the original southern section by Mobil.

The architecture also records the shifting corporate rivalries of the era. In 1918, the British Asiatic Petroleum Company expanded the footprint, adding a smaller northern section to the existing office. This two-phase history remains visible today in the placement of the building’s main entrances, which are uniquely positioned at the fourth and eighth arches from south to north.

Today, the office building forms a core part of the "Jiujiang Mobil Company Old Site," a nationally protected heritage complex that includes the main foreign firm building, the massive concrete oil depot, and a nearby executive villa. Together, these structures offer visitors a rare, functionally complete look at the early days of foreign industrial enterprise in China. The red brick office stands as a quiet survivor of this era, inviting observers to read the history of global trade directly from its walls and archways.